Why are all 3 phones dead?

YOUR CELL IS DEAD OK
1}SO FIRST CHANGE YOUR BATTERY {VOLTAGE IS 3.60 TO 4.20} OK
2}CHACK BATTERY CONNECTOR
3}CHECK SHORTING
4}AND CHECK ON OFF SWITCH VOLTAGE{VOLTAGE IS 2.80 TO 3.20}
5}IF VOLTAGE IS OK SO FLASH YOUR PHONE ON CRUSER BOX OR SETOOL FLASHER BOX.
6} IF THERE IS SOFTWARE PROUBLEM SO YOUR PHONE IS OK AND WORK
IDRISH 911

It May Be A Problem In The Battery Did You Try Changeing It ?

remove this capicitar (Parts)

go to the nearest cellshop..
your phone might have a crashed program

Either the charger plug in to your phone is mad, your phone connecter for the charger plug in is insane, or your battery is crazy. Try finding out while you charge, but your phone's dead then you'll have to ask the person you bought from to help you check, or else since there's no battery you can't really find out which fault it is.

Hello,

check the battery and phone power button.

It's either the phone battery is dead or the power button is not contacting the phone board panel well.

If the above two are OK, then the problem is from the phone panel.

I just hope the phone board is not dead because if it is dead that means you have to get another phone.

I wish you all the best.

lg kp500 mobile phone dead plz help contect karmjeet singh 919872154717

THROW IT AWAY.  I HAVE THE SAME PROBLEM AND PANASONIC AFTER SALES "SERVICE" PEOPLE  HAVE BEEN COMPLETELY USELESS!